G.657.A2 Fiber Low Loss Single Mode Bare Fiber Optic

The low loss single mode G.657.A2  fiber cable complies with ITU-T recommendations G.652.D and G.657.A1. Which also meet IEC international standard 60793-2-50 B.1.3 fiber specifications.

The fiber is manufactured using advanced VAD technology and has extremely fine refractive index distribution control. At the same time, FTTH Single-mode Fiber Optic Cable has excellent geometric performance and low attenuation characteristics.

Features

  • Excellent geometric characteristics;
  • Precise refractive index distribution control;
  • G.657.A2 fiber optic Support long-distance network communication;
  • Single mode fiber optic Complies with or exceeds the ITU-T Recommendation G.652.D and the IEC International Standard 60793-2-50 type B.1.3 Optical Fiber Specifications;
  • Low attenuation;

Application of G.657.A2 Fiber

  • Mainly used for FTTH Applications;
  • ELV fiber application;
  • LAN & WAN networking;
  • Security System;
  • Optical fiber sensors;

Technology Parameters

Hydrogen Optical Properties
Fiber Type Single mode,Silica
Attenuation      @1310nm
@1383nm(After hydrogen aging)
@1490nm
@1550nm
@1625nm
      dB/km ≤0.36
≤0.36
≤0.25
≤0.22
≤0.24
Zero dispersion wavelength          nm 1300~1324
Zero dispersion slope     ps/(nm².km) ≤0.092
Cable cutoff wavelength λ cc            nm ≤1260
Mold field diameter(MFD)               @1310nm
@1550nm
           μm (8.6-8.8)±0.4
(9.6-9.8)±0.5
Geometric characteristics
Cladding diameter μm 125.0±0.7
Cladding non circularity % ≤0.7
Coating diameter μm 245±5
Coating/Cladding concentricity error μm ≤12.0
Core/clad concentricity error μm ≤0.5
Warpage degree (radius) m ≥4
Mechanical characteristics
Screening tension off-line N
%
kpsi
≥8.6
≥1.0
≥100
Macro bend additional attenuation
1 circle, 15mm @1550nm dB ≤0.5
1 circle: 15mm @1625nm dB ≤1.0
1 circle, 20mm @1550nm dB ≤0.1

 

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